Answer:
If a succession of strata are folded so that they have the shape of an overturned bowl, the fold is a(n) syncline.
Step-by-step explanation:
A syncline is a geological fold where the layers of rock are bent downward in the center, resembling the shape of an overturned bowl. This type of fold is characterized by the youngest rock layers occurring in the core of the fold, while older layers are found towards the outer edges.
Synclines typically form in response to tectonic forces, where compressional stresses cause the Earth's crust to deform and fold. In the case of an overturned bowl-shaped syncline, the folding process involves the curvature of the rock layers with the youngest rocks in the trough of the fold.